[NOT FOR REVIEW] Patch demonstrating the changes required for browser side fling.

webkit/child/fling_curve_configuration.h

Index: webkit/child/fling_curve_configuration.h
diff --git a/webkit/child/fling_curve_configuration.h b/webkit/child/fling_curve_configuration.h
deleted file mode 100644
index 2ce5ba143bf19a7be09a775b520a70f50500b0bd..0000000000000000000000000000000000000000
--- a/webkit/child/fling_curve_configuration.h
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.

[jdduke (slow), 2013/10/31 15:44:20]

I'm not sure we should be removing any of this from webkit/.  Blink still needs
the ability to create flings, no?  Particularly for non-Chromium platforms?  I
suppose if Chromium guarantees Blink never receives a GestureFlingStart, we're
OK, but that seems a little fishy... Do you have a CL for the Blink changes?

[varunjain, 2013/10/31 17:26:03]

I dont have a patch for blink yet. But IIUC, non-Chromium platforms are expected
to interact with blink using content api. So as long as content is handling
fling, there is no lose of functionality?

-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_
-#define WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_
-
-#include <vector>
-
-#include "base/synchronization/lock.h"
-#include "third_party/WebKit/public/platform/WebFloatPoint.h"
-#include "third_party/WebKit/public/platform/WebSize.h"
-
-namespace WebKit {
-class WebGestureCurve;
-}
-
-namespace webkit_glue {
-
-// A class to manage dynamically adjustable parameters controlling the
-// shape of the fling deacceleration function.
-class FlingCurveConfiguration {
- public:
-  FlingCurveConfiguration();
-  virtual ~FlingCurveConfiguration();
-
-  // Create a touchpad fling curve using the current parameters.
-  WebKit::WebGestureCurve* CreateForTouchPad(
-      const WebKit::WebFloatPoint& velocity,
-      const WebKit::WebSize& cumulativeScroll);
-
-  // Create a touchscreen fling curve using the current parameters.
-  WebKit::WebGestureCurve* CreateForTouchScreen(
-      const WebKit::WebFloatPoint& velocity,
-      const WebKit::WebSize& cumulativeScroll);
-
-  // Set the curve parameters.
-  void SetCurveParameters(
-      const std::vector<float>& new_touchpad,
-      const std::vector<float>& new_touchscreen);
-
- private:
-  WebKit::WebGestureCurve* CreateCore(
-    const std::vector<float>& coefs,
-    const WebKit::WebFloatPoint& velocity,
-    const WebKit::WebSize& cumulativeScroll);
-
-  // Protect access to touchpad_coefs_ and touchscreen_coefs_.
-  base::Lock lock_;
-  std::vector<float> touchpad_coefs_;
-  std::vector<float> touchscreen_coefs_;
-
-  DISALLOW_COPY_AND_ASSIGN(FlingCurveConfiguration);
-};
-
-} // namespace webkit_glue
-
-#endif // WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_